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Top rated copper bars
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Best overall
CMP-100-HH Oxygen-Free Copper Bar
High-purity oxygen-free copper bar with excellent conductivity, ideal for electrical applications and industrial crafting.
- High conductivity
- Corrosion resistant
- Good machinability
- Premium price
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Best value K & S Precision MetalsK&S Precision Metals Copper Bar 110
Reliable half-hard copper bar 110 alloy, popular for general industrial use, easily cut and shaped.
- Consistent quality
- Versatile
- Affordable
- Not fully annealed
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Best for machining HWYEEAremco Copper Bar C110
C110 electroformed copper bar with tight tolerances, suitable for CNC and precision parts.
- Tight tolerances
- Smooth surface
- Durable
- More expensive
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Best budget pick Online MetalsOnlineMetals Copper Bar
Basic copper bar 110 in various sizes, cost-effective for non-critical industrial projects.
- Low cost
- Wide size range
- Good for prototyping
- May have surface imperfections
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Best quality HWYEEMcMaster-Carr Copper Bar
Premium 110 copper bar with exceptional finish and uniformity, backed by McMaster-Carr's quality guarantee.
- Superb finish
- Excellent uniformity
- Reliable supplier
- Higher price
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Best for electronics Online MetalsCopper Bar 101 Oxygen Free
OFHC copper bar with 101% IACS conductivity, ideal for high-end electrical and RF applications.
- Ultra-high conductivity
- Low oxygen content
- Excellent for welding
- Expensive
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Best fast shipping HWYEE
Speedy Metals Copper Bar C110
C110 copper bar sold in cut-to-size lengths, popular among hobbyists and small shops for quick projects.
- Cut to size
- Fast shipping
- Good price
- Limited thickness options